Development of Solid phase graphitization of graphene nanoribbon and it device application using amyloid as carbon template

利用镓蒸气催化剂和淀粉样原纤维碳模板，通过固相石墨化直接在绝缘衬底上合成了宽度约为10纳米的单层和双层石墨烯纳米带。随后的研究表明，通过提高合成温度，结晶度、电导率和载流子迁移率都得到了改善。在1050℃下合成的GNRs载流子迁移率为0.83 cm2/Vs，低于机械剥离石墨烯的迁移率。这被认为很可能是由于gnr的缺陷和边缘引起的电子散射。

Single- and double- ayer graphene nanoribbons (GNRs) with widths of around 10 nm were synthesized directly onto an insulating substrate by solid-phase graphitization using a gallium vapor catalyst and carbon templates made of amyloid fibrils. Subsequent investigation revealed that the crystallinity, conductance and carrier mobility were all improved by increasing the temperature of synthesis. The carrier mobility of GNRs synthesized at 1050 degree C was 0.83 cm2/Vs, which is lower than that of mechanically exfoliated graphene. This is considered to be most likely due to electron scattering by the defects and edges of the GNRs.